Vol. 11, Issue 12 (2022)

Author(s):
PS Gochar, RP Andhale, BT Sinare, RS Wagh, MR Patil, SK Surendra, SS Jamdade and AU Andhale

Abstract:
A field experiment was conducted during summer 2022 at PGI-Research Farm, MPKV, Rahuri. The experiment was laid out in split plot design with four sowing dates (3^rd January, 17^th January, 31^st January and 14^th February) and four varieties (Js-9305, KDS-726, KDS-753 and KDS-992) replicated thrice. The results revealed that, the number of days required to emergence, 50 % flowering, physiological maturity and harvest stage were significantly higher in case of 3^rd January sowing (11.5, 75.6,115 and 126.5 days, respectively) and the 14^th February sown crop took minimum days to emergence (7.4 days), 50 % flowering (55.5 days) and physiological maturity (90.5 days) as well as at harvest (101.8 days) during the year of investigation. The cumulative GDD to attain emergence, physiological maturity and harvest stage (126.1, 1797.5 and 2068.1 °C days, respectively) was highest under 3^rd January sowing while at 50% flowering highest GDD (982.1) was attained by 14^th February sown crop. The cumulative GDD at critical growth stages was highest in Phule Durva at emergence, 50 % flowering, physiological maturity and harvest stage (110.8, 1019.8, 1829.0 and 2161.3 °C days, respectively).